Automatic Tool Presetter (ATP) - Alignment - Test

Introduction

This procedure shows how to align an Automatic Tool Presetter (ATP) on ST series machines.

This document applies to the following:

Non-compact ATP [1]
Compact ATP [2]

Instructional Video

Calibrate the Automatic Tool Probe (ATP) on Your Lathe

Automatic Tool Presetter - Adjustments

Non-Compact ATP

1

Operate this code in [MDI] mode for 3 minutes:

M104; (Tool Presetter Down)

G04 P4;

M105; (Tool Presetter Up)

G04 P4;

M99;

If the ATP arm [2] does not align with home block [1], use the 3/8-24" setscrew [3] to move it toward or away from the home block.

Make sure to tighten the locknut to the adjusted position.

2

Operate this code in [MDI] mode: M104. This lowers the ATP arm.

Install a turning-stick tool into the first pocket of the turret.

Jog the X and Z axes so that the tip of a turning-stick tool [2] is near the probe stylus [1].

If the tool does not align with the center of the stylus, turn the top 3/8-24" x 2" setscrew [3] to move the stylus up or down.

Make sure to tighten the locknut to the adjusted position.

Compact ATP

1

Operate this code in [MDI] mode for 3 minutes:

M104; (Tool Presetter Down)

G04 P4;

M105; (Tool Presetter Up)

G04 P4;

M99;

If the ATP arm [2] does not align with home block [1], remove the ATP in order to move the spacer plate [3]. Loosen the spacer plate [3] bolts and tap the sides into proper orientation.

NOTE: When removing the ATP, leave air lines and wires connected.

Make sure to torque all lose bolts.

2

Operate this code in MDI mode: M104. This lowers the ATP arm.

Install a turning-stick tool into the first pocket of the turret.

Jog the X and Z axes so that the tip of a turning-stick tool [2] is near the probe stylus [1].

If the tool does not align with the center of the stylus, remove the ATP in order to move the spacer plate [3]. Loosen the spacer plate bolts and tap the top or bottom edge into proper orientation.

Make sure to torque all lose bolts.

Automatic Tool Presetter - Alignment

1

Attach the magnetic base of a dial indicator to the turret.

Move the indicator across the probe stylus.

The probe stylus must be parallel to the Z Axis. The error must be less than 0.0004" (0.01 mm).

If necessary, loosen the probe stylus screws [1] [2] and adjust the position.

Note: There are two types of stylus used with this ATP, one with two adjustment screws [1] and another with a single adjustment screw [2].

2

The position of the ATP stylus is established by 4 settings: 59, 60, 333, and 334.

Measure the width of the stylus in the Z axis using a micrometer and enter that value into setting 334.

Set setting 333 to 0.0.

Automatic Tool Presetter - Calibration

The ATP can be calibrated using one of the two methods listed below. Method A is recommended.

Method A

1

O.D.

NOTE: The Non-Compact ATP is shown for reference. The same applies for the Compact ATP unless mentioned otherwise.

Install an O.D. turning tool in the turret tool 1 station [2].

Install a workpiece in the chuck [1].

Turn down the outer diameter of a workpiece in the negative Z-axis direction.

Push [HAND JOG].

Push [.001].

Hold down [+Z] to move the tool away from the part.

Stop the spindle.

Measure the diameter of the cut made on the workpiece [3].

Press [OFFSET] and move the cursor to the X Geometry Column in a row for a tool that is not in use.

Press [X Diameter Measure] and enter the measured diameter of the workpiece when prompted.

Push [ENTER].

This adds the value to the [OFFSET] column value.

Record this value on paper as a positive number.

This is the X Diameter Measure value.

2

Note: The values shown are for illustrative purposes only.

For O.D. change Settings 59 to 0 [1].

Jump to the Automatic Tool Presetter - Test sub-procedure. Only do steps 1, 2, and 3 without repeating them.

Note: In step 3, do not clear the value in the X GEOMETRY column.

The value in the X GEOMETRY column, after completing test step 3, is the Probed Offset Value. Subtract the Probed Offset Value from the X Diameter Measure value.

Enter the result as a positive value into Setting 59 [2]

Setting 59 = (X Diameter Measure value) - (Probed Offset Value)

Jump to Automatic Tool Presetter - Test sub-procedure. Complete all steps in the sub-procedure, then continue to the next step of Method A.

3

I.D.

NOTE: The Non-Compact ATP is shown for reference. The same applies for the Compact ATP unless mentioned otherwise.

Install an I.D. turning tool in the turret [2].

Turn down the inner diameter of the workpiece in the chuck [1].

Push [HAND JOG].

Push [.001].

Hold down [+Z] to move the tool away from the part.

Stop the spindle.

Measure the diameter of the cut made on the workpiece [3].

Press [OFFSET] and move the cursor to the X Geometry Column in a row for a tool that is not in use.

Press [X Diameter Measure] and enter the measured diameter of the workpiece when prompted.

Push [ENTER].

This adds the value to the [OFFSET] column value.

Record this value on paper as a positive number.

This is the X Diameter Measure value.

4

Note: The values shown are for illustrative purposes only.

For I.D change Settings 60 to 0 [1].

Jump to the Automatic Tool Presetter - Test sub-procedure. Only do steps 1, 2, and 3 without repeating them.

Note: In step 3, do not clear the value in the X GEOMETRY column.

The value in the X GEOMETRY column, after completing test step 3, is the Probed Offset Value. Subtract the Probed Offset Value from the X Diameter Measure value.

Enter the result as a positive value into Setting 60 [2]

Setting 60 = (X Diameter Measure value) - (Probed Offset Value)

Jump to Automatic Tool Presetter - Test sub-procedure. Complete all steps in the sub-procedure, then continue to the next step of Method A.

5

Measure the width of the stylus [1].

Enter this value as a positive number for Settings 63 and 334.

Setting 333 will remain zero.

Press [CURRENT COMMANDS]. Navigate to the Macro Vars tab.

Change the below macro values to match the setting values.

#10582 = Setting 59
#10583 = Setting 60
#10584 = Setting 333
#10585 = Setting 334

Note: The automatic probing cycles uses these macro variables to verify calibration is complete. If the values do not match the probing cycle, the machine will generate an alarm.

Automatic Tool Presetter - Test

1

Note: Make sure that the ATP arm does not hit parts of the machine.

Move the tool away to a safe position out of the ATP arm path.

Push [CURRENT COMMANDS].

Select the Devices tab

Select the Mechanisms tab

Select the Miscellaneous tab.

Highlight Probe Arm

Push [F2] to lift the ATP arm.

Push [F2] to lower the ATP arm.

Note: For Classic Haas Control, the button sequence is as follows:

Go into [MDI] mode.

Push [PROGRAM].

Select the PROBE tab.

Push [F1] to lift the ATP arm.

Push [F1] to lower the ATP arm.

2

Make sure a turning-stick tool is installed in the first pocket.

Make sure the first pocket faces the spindle.

With the probe arm lowered, jog the X and Z Axes to the center of the probe stylus [1].

Jog the X-axis to move the tool tip to 0.25" (6.4 mm) [2] above (O.D.) or below (I.D.) the probe stylus.

Note: The left image shows an O.D. tool and the right image shows an I.D. tool

3

Push [OFFSET] one or two times to go to the TOOL GEOMETRY display.

Select the X GEOMETRY value.

Push [0]. Push [F2]. This removes the X GEOMETRY value.

If you get a warning message [1], Push [Y] to select YES.

Make sure the door is closed then push [.001].

For O.D. tool [1] testing push and hold [-X] until the stick tool touches the probe.

For I.D. tool [2] testing push and hold [+X] until the stick tool touches the probe.

Note: You hear a beep sound when the stick tool touches the tool probe.

Record the X GEOMETRY value on paper.

Caution: Be sure to accurately record this value.

Jog the X Axis away from the ATP arm.

Repeat test steps 1-4 five times.

4

Compare the highest and lowest recorded values. If the difference is more than 0.002 (0.05 mm), adjust the Setting value by:

If checking O.D., add or subtract the difference from Setting 59
If checking I.D., add or subtract the difference from Setting 60

Method B (optional)

1

Press [SETTING]. Navigate to the user position tab. Arrow down and select Spindle Center Line.

Write down the spindle center line value that matches the tooling style used to mount the drill/mill tool.

Index the drill/mill tool to the active position.

Jog the shank of the tool close to the X+ face of the stylus.

Push [HAND JOG].

Push [.0001].

Hold down the [-X] jog key until the ATP is triggered and the machine beeps. Jogging will automatically halt.

Write down the machine X position.

Set setting 59 = (Machine X position - Spindle Center Line) - drill/mill shank diameter

Jog the shank of the tool close to the X- face of the stylus.

Push [HAND JOG].

Push [.0001].

Hold down the [+X] jog key until the ATP is triggered and the machine beeps. Jogging will automatically halt.

Write down the machine X position.

Set setting 60 = (Machine X position - Spindle Center Line) + drill/mill shank diameter

2

Measure the width of the stylus.

Enter this value as a positive number for Settings 63 and 334.

Setting 333 will remain zero.

Press [CURRENT COMMANDS]. Navigate to the Macro Vars tab.

Set the macro variables equal to the following settings:

#10582 = Setting 59
#10583 = Setting 60
#10584 = Setting 333
#10585 = Setting 334

Note: The values shown are for illustrative purposes only.

Use the testing and refinement sections to increase the accuracy of Setting 59 and 60.